Extracting tool



May 27,1930. 5; NORDSTRO'M EXTRAGT'ING TOOL Filed Dec. 6. 1928 INVENTOR.

. ATTORNEY.

50 between the plates 12 and Patented May 27, 1930 UNITED STATES EDGARNORDSTROM, F DETROIT, MICHIGAN EXTRACTING TOOL Application filedDecember My invention relates to a new and useful improvement in anextracting tool adapted particularly for extracting zerk caps from theirmountings.

It is an object of the present invention to provide an extracting toolof this kind which will be simple in structure, economical ofmanufacture and highly eflicient in use.

Another object of the invention is the provision of a pair of spacedengaging members mounted on a movable plate and provided with a cam formovinig said plate to effect a closing together of said engagingmembers. Other objects will appear hereinafter.

The invention consists in the combination and arrangement of partshereinafter described and claimed.

The invention will be best understood from a reference to theaccompanying drawing which forms a part of this invention, and in which,

Fig. 1 is a perspective view of the invention,

Fig. 2 is an end elevational view of the invention showing the device inopen position,

Fig. 3 is a view similar to Fig. 2 showing the engaging members inclosed position, and

Fig. 4 is a sectional view taken on line 4 4 of Fig. 2.

The invention is particularly adapted for removing zerk caps 7 from theplate 8 on which they are mounted. These zerk caps are commonly usedwhere it is desired to lubricate by means of a pressure lubricating un.

b The invention comprises a plate 9 having an opening 10 formed thereinin which is slidably positioned a pair of parallel or aligning plates 11and 12 which are recessed on their inner surfaces at one end and whichhave their ends 13 turned inwardly to form gripping surfaces. Theseplates are provided each with an inwardly projecting boss 14 on theirinner surfaces and are flared outwardly toward one end of their outersurfaces. The inner or en%ging surfaces of these bosses are curved.ivotally mounted 11 by means of Serial No. 324,118.

the pin 15 is a handle 16 which is formed curved as at 17 to provide acam for engaging the upper surface of the plate 9 and effecting itsdownward movement on the members 11 and 12 to cause them to move intoapproach. A spring 18 is mounted on the bolt 19 which is projectedthrough the plates 11 and 12 and serves as an abutment for the handle116 in its rocking operation.

As shown in Fig. 2, when the plate 9 is moved to the upper position, thespring 18 will serve to move the upper ends of the members 11 and 12into approach so as to separate the inwardly turned edges 13. When inthis position, these edges are engaged over the base of the zerk 7 and arocking of the handle will force the plate 9 downwardly into theposition shown in Fig. 3, the members 11 and 12 rocking on the bosses 14so as to securely grip the cap 7. When in this position, the cap 7 maybe pulled from its mountings. In the movement of the plate 9 downwardly,binding of the plate is prevented because of the large area engaged bythe curved surface 17. Plates 11 and 12 also serve as a guide for theplate 9 in this movement.

While I have illustrated and described the preferred form of myinvention, I do not wish to limit myself to the precise details ofstructure shown, but desire to avail myself of such variations andmodifications as come within the scope of the appended claims.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A tool of the class described comprising a plate having an openingformed therein; a pair of plates projected through said opening inalignment with each other, said plates being flared outwardly at theirouter surface at one end, the inner surface of said plates adjacent saidend being recessed and having the edges thereof directed inwardly toprovide gripping surfaces; a boss formed on the inner surface of each ofsaid plates and having curved surfaces engaging with each other, themovement of said opening bearing plate longitudinally of said pair ofplates in one direction effecting a rocking of said pair of plates onsaid bosses.

2. A tool of the class described comprising a plate having an openingformed therein; a pair of plates projected through said opening inalignment with each other, said plates being flared outwardly at theirouter surface at one end, the inner surface of said plates adjacent saidend being recessed and having the edges thereof directed inwardly toprovide gripping surfaces; a boss formed on the inner surface of each ofsaid plates and having curved surfaces engaging with each other, themovement of said opening bearing plate longitudinally of said pair ofplates in one direction effecting a rocking of said pair of plates onsaid bosses; a cam for moving said opening bearing plate longitudinallyof said pair of plates in said direction.

8. A tool of the class described comprising a plate having an openingformed therein; a pair of plates projected through said opening inalignment with each other, said plates being flared outwardly at theirouter surface at one end, the inner surface of said plates adjacent saidend being recessed and having the edges thereof directed inwardly toprovide gripping surfaces; a boss formed on the inner surface of each ofsaid plates and having curved surfaces engaging with each other, themovement of said opening bearing plate longitudinally of said pair ofplates in one direction effecting a rocking of said pair of plates onsaid bosses; a cam for moving said opening bearing plate longitudinallyof said pair of plates in one direction; and resilient means for lockingsaid pair of plates in the opposite direction upon movement of saidopening bearing plate longitudinally of said pair of plates in theopposite direction.

4. A tool of the class described comprising a bearing plate having anopening therein; a pair of plates projected through said opening andhaving their outer surfaces adjacent one end flared outwardly, themovement of said bearing plate longitudinally of said pair of plates inthe direction of said end of said pair of plates eifecting an approachof said pair of plates at said end toward each other.

5. A tool of the class described comprising a hearing plate having anopening therein; a pair of plates projected through said opening andhaving their outer surfaces adjacent one end flared outwardly, themovement of said bearing plate longitudinally of said pair of plates inthe direction of said end of said pair of plates eflecting an approachof said pair of plates at said end toward each other; and cam means formoving said bearing plate longitudinally of said pair of plates towardsaid end.

6. A tool of the class described comprising a bearing plate having anopening therein; a pair of plates projected through said opening andhaving their outer surfaces adjacent one end flared outwardly, themovement of EDGAR NORDSTROM.

